For professionals in the cosmetic and chemical industries, precise technical data is the bedrock of successful product development. HC Blue No. 11, a significant intermediate in hair dye manufacturing, is defined by a comprehensive set of specifications that ensure its quality and suitability for application. Understanding this data is key to leveraging its capabilities effectively.

The core identity of HC Blue No. 11 is established through its chemical name, 2-[N-(2-hydroxyethyl)-4-(2-methoxyethylamino)-3-nitroanilino]ethanol, and its CAS number, 23920-15-2. These identifiers are crucial for tracing and regulatory purposes. The molecular formula, C13H21N3O5, and molecular weight of 299.32300 provide fundamental chemical insights. Furthermore, its physical appearance as a dark brown powder, along with its density of 1.323 and boiling point of 538.371°C, offers practical information for handling and process design.

Key quality metrics for HC Blue No. 11 include its purity, which is specified at a minimum of ≥99.0% by HPLC. This high purity level is essential for ensuring consistent color development and minimizing potential side reactions in hair dye formulations. Additionally, low ash content (≤1.0%) and loss on drying (≤1.0%) indicate a well-processed and stable chemical intermediate. The controlled iron content (≤100ppm) further underscores the commitment to producing a refined product suitable for cosmetic use.

Manufacturers such as Ningbo Inno Pharmchem Co., Ltd. provide this critical technical data, enabling cosmetic formulators to make informed decisions. Understanding the flash point (279.397°C) is important for safety protocols, while packaging options (25 kg/drum) and storage recommendations (cool, ventilated place) facilitate efficient logistics and product integrity. By meticulously adhering to and understanding this technical data, the industry can ensure the development of innovative and reliable hair coloring products.